98 lines
2.5 KiB
Ruby
98 lines
2.5 KiB
Ruby
require 'active_support/core_ext/class/attribute'
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require 'active_support/core_ext/object/blank'
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module ActionController
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def self.add_renderer(key, &block)
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Renderers.add(key, &block)
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end
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module Renderers
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extend ActiveSupport::Concern
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included do
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class_attribute :_renderers
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self._renderers = {}.freeze
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end
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module ClassMethods
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def _write_render_options
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renderers = _renderers.map do |name, value|
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<<-RUBY_EVAL
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if options.key?(:#{name})
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_process_options(options)
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return _render_option_#{name}(options.delete(:#{name}), options)
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end
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RUBY_EVAL
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end
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class_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1
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def _handle_render_options(options)
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#{renderers.join}
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end
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RUBY_EVAL
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end
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def use_renderers(*args)
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new = _renderers.dup
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args.each do |key|
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new[key] = RENDERERS[key]
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end
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self._renderers = new.freeze
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_write_render_options
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end
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alias use_renderer use_renderers
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end
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def render_to_body(options)
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_handle_render_options(options) || super
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end
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RENDERERS = {}
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def self.add(key, &block)
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define_method("_render_option_#{key}", &block)
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RENDERERS[key] = block
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All._write_render_options
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end
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module All
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extend ActiveSupport::Concern
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include Renderers
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INCLUDED = []
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included do
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self._renderers = RENDERERS
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_write_render_options
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INCLUDED << self
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end
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def self._write_render_options
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INCLUDED.each(&:_write_render_options)
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end
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end
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add :json do |json, options|
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json = ActiveSupport::JSON.encode(json, options) unless json.respond_to?(:to_str)
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json = "#{options[:callback]}(#{json})" unless options[:callback].blank?
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self.content_type ||= Mime::JSON
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self.response_body = json
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end
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add :js do |js, options|
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self.content_type ||= Mime::JS
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self.response_body = js.respond_to?(:to_js) ? js.to_js(options) : js
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end
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add :xml do |xml, options|
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self.content_type ||= Mime::XML
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self.response_body = xml.respond_to?(:to_xml) ? xml.to_xml(options) : xml
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end
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add :update do |proc, options|
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view_context = self.view_context
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generator = ActionView::Helpers::PrototypeHelper::JavaScriptGenerator.new(view_context, &proc)
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self.content_type = Mime::JS
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self.response_body = generator.to_s
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end
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end
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end
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